The use of alcohol, tobacco and drugs can contribute to all of the following like, increased possibility of miscarriage, premature delivery, low birth weight except delayed labor. It is impossible that a mother can have delayed labor because first using this kind of drugs can give you miscarriage.
B. toxoplasmosis gondii can be caused by cat litter
I think C. Hopefully I helped, health is not really my forte
You can care for yourself while caring for others by simultaneously looking out for each other. For example, you can both eat vitamins to keep your bodies strong.